2-undecanone

Structural formula
General
Surname	2-undecanone
other names	Methyl nonyl ketone Undecan-2-one METHYL NONYL KETONE ( INCI )
Molecular formula	CH 3 (CH 2 ) 8 COCH 3
Brief description	yellow liquid with a pleasant odor
External identifiers / databases
CAS number 112-12-9 EC number 203-937-5 ECHA InfoCard 100.003.579 PubChem 8163 ChemSpider 7871 DrugBank DB08688 Wikidata Q2024187
properties
Molar mass	170.29 g · mol -1
Physical state	liquid
density	0.825 g cm −3 (25 ° C)
Melting point	12 ° C
boiling point	231 ° C
Vapor pressure	0.01 hPa (20 ° C)
solubility	practically insoluble in water soluble in alcohol, ether, acetone, benzene, chloroform
Refractive index	1.43 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 410 P: 273
Toxicological data	5000 mg kg −1 ( LD 50 ,  rat ,  oral ) > 5000 mg kg −1 ( LD 50 ,  rabbit ,  transdermal )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

2-Undecanone or methyl nonyl ketone is a chemical compound from the group of ketones and a natural product.

Occurrence

African weaver ant ( Oecophylla longinoda )

Rautenöl contains 2-undecanone as the main component. It is also part of the alarm pheromone of the African weaver ant ( Oecophylla longinoda ).

use

Due to its strong odor, 2-Undecanone is used as a repellent against insects, but also against dogs and cats.

Individual evidence

1. ↑ Entry on METHYL NONYL KETONE in the CosIng database of the EU Commission, accessed on May 7, 2020.
2. ↑ ^{a b c d e f g h i} Entry on 2-undecanone in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
3. ↑ ^{a b} Data sheet 2-Undecanone, natural, ≥97%, FCC from Sigma-Aldrich , accessed on March 10, 2014 ( PDF ).
4. ↑ ^{a b c} Entry on Undecan-2-one. In: Römpp Online . Georg Thieme Verlag, accessed on March 10, 2014.